Improvement in force-pumps



N. LEGR'OS. Force-Pump.

Patented May 20, 1879.

NJETERS. PHOTOMTHQGRAPHER, WASHXNGTON. D C.

UNITED-STATES PATENT OFFICEc NORBERT LEGROS, OF WINDSOR, ONTARIO,CANADA, ASSIGNOR OF ONE- HALF HIS RIGHT TO ALBERT DROUILLARD.

" IMPROVEMENT IN FORCE-PUMPS.

Specification forming part of Letters Patent No. 215,468, dated May 20,1879; application filedV April 4, 1879.

, To all 'whom it may concern:

Beit known that I, NORBERT LEGRos, of the town of Windsor, in the countyof Essex, in the Province of Ontario, in the Dominion of Canada, haveinvented certain new and useful Improvements in Force-Pumps; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit pertains to make and use it, reference being had to the accompanyingdrawings, which form part of this specication.

My invention relates to an improvement in the method of raising andejecting water or other liquids by means of a lever with several `fixedarms placed in a water-tight cylinder, and working in a fixed socket atone end and being rotated at the other. To the ends of these fixed armsare hinged vconnecting-rods, which are hinged at their other ends toliftingvalves, the rotary motion of one end of this lever giving areciprocating Amovement to the lifting-valves, and thus, by distributingthe suction of the water equally over a considerable space, to impart asteadiness to the drawing and forcing of the liquid with comparativelylittle friction or loss of power.

In the accompanying drawings, Figure 1 is a central section of the pump.Fig. 2`is a horizontal sectional view of the pump at the line a a,Fig. 1. Fig. 3 is a view of the under side of the pump with the bottomof the suction-chest removed, showing the lower valves. Fig. 4 shows theapplication of the pump to raising water from a well or cistern.

A A are two cylindrical-shaped vessels fastcned together bybolts passingthrough flan ges, as shown by the drawings.

In thelowercylinder,A,is cast orconstructed an indenite number ofcylindrical chambers equidistant from the axis of the large cylinder.These cylinders have suitable-sized holes cast in their lower ends, uponwhich valves F F, &c., work. Under these. lower valves is a chamber, N,forming a protection for them, and for the purpose1 of attaching asuctionpipe to when necessary. The coverl M of this chamber should behopper-shaped, so as to admit the liquid to the valves with as littlevariety in the course of the current as possible, and the inlet L of alarge size, equal to at least half the area of the holes covered by thevalves F F, &c. These valves F F, 8vo., are.

attached to the chambered cylinder by springwires G G, Ste., playingthrough guides H H, Ste., which are attached, by staples or otherwise,to the bottom of the lower cylinder, A.

The armed lever B may, if desirable, be placed above the cylinder A, andthe connecting-rods will then pass through the cylindercover and thesame effectbe produced. The lifting-valves D D, &c., are provided withtrapvalves E E, &c., covering holes in their lower ends. Thesetrap-valves are attached to the cross-bars, to which connecting-rods OC, &c., are hinged by means of spiral springs, which serve to keep thevalves in place and admit of a free play on the downward movement of thelifting-valves.

When the upper end of the lever is moved by the rotation of the crank I,the lifting valves D D, &c., are raised and lowered in their turn, andthe liquid drawn Vup into the upper cylinder, and from thence is forcedthrough outlets O O, and from thence in any required direction. Theseoutlets may be either in the sides of the cylinder `A or in its top, andthere may be any required number of them.

The crank I is attached to a shaft, J, by means of a key, set-screw, orother fastening, and is connected at its outer end with the end of thelever B by a socket and point, as shown in the drawings, or by aball-and-socket joint, or by any ordinary method not producing muchfriction.

The shaft J is squared at the top, and shaft K lits on this and ispinned to it. A washer, Q, of suitable material is placed between theshaft K and the top of a follower, which is screwed into thecylinder-top and forms the cover for the packing of the shaft. The shaftK extends upward to the proper height when the pump is used for wells orfor raising liquid, and the power is applied in the usual manner eitherby a vertical or horizontal rotary motion.

This pump may be used in any position. It can be made of wood, metal, orany suitable material.

It is apparent that alterations in the conits aXis, said arms beingattached by connect-l ing-rods to lifting-valves, such as thosedescribed, all Working` in a Water-tight cylinder, (except the leverWith its arms and connect- :ing-rods, Which may be outside,) and givingmotion to the different valves by the rotation of this lever at itsupper end, While the lower end'works in a fixed socket or step, for thepurpose of raising and forcing liquid in any desired direction. l

2. The combination of the lever B With cylinders A and A', crank I,connecting-rods C C, &c., and lifting-valves D D, Svc., as described,for the purposes set forth.

3. A crank rotating one end of an armed Y lever, such as the onedescribed,working either inside or outside a Water-tight cylinder, forthe purposes set forth.

NORBERT LEGROS. Witnesses:

S. M. GODDARD, FRED. L. FOSTER.

